Tides Today & Tomorrow in Squamscott River, Great Bay, NH

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently rising in Squamscott River, Great Bay, NH.
Next low tide (tomorrow) : 2:58 am (0.5 ft)
Next high tide : in 17m at 8:14 pm (7.4 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:12 am
Moon phase : Third Quarter (41% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Jan 2008

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:426.68:135.91:420.92:260.97:154:19Third Quarter1Tue
2Wed8:356.69:135.82:351.23:260.97:154:19Waning Crescent2Wed
3Thu9:286.610:095.83:301.34:230.87:154:20Waning Crescent3Thu
4Fri10:186.711:005.94:231.35:130.67:154:21Waning Crescent4Fri
5Sat11:046.911:466.05:111.35:580.47:154:22Waning Crescent5Sat
6Sun11:477.05:541.16:390.27:154:23New Moon6Sun
7Mon12:286.112:277.26:341.07:170.17:144:24New Moon7Mon
8Tue1:086.21:067.47:130.87:54-0.17:144:25New Moon8Tue
9Wed1:466.41:447.57:510.78:29-0.27:144:26New Moon9Wed
10Thu2:226.52:227.58:300.59:05-0.37:144:27Waxing Crescent10Thu
11Fri2:586.73:007.59:100.49:42-0.37:134:28Waxing Crescent11Fri
12Sat3:356.83:417.49:530.310:22-0.37:134:30Waxing Crescent12Sat
13Sun4:157.04:277.210:400.211:05-0.27:134:31Waxing Crescent13Sun
14Mon4:597.15:187.011:310.211:530.07:124:32First Quarter14Mon
15Tue5:487.26:146.712:270.27:124:33First Quarter15Tue
16Wed6:427.37:166.512:440.21:270.27:114:34First Quarter16Wed
17Thu7:417.48:246.31:410.42:320.17:114:35Waxing Gibbous17Thu
18Fri8:457.59:356.32:440.53:41-0.17:104:37Waxing Gibbous18Fri
19Sat9:517.610:416.53:500.54:48-0.37:104:38Waxing Gibbous19Sat
20Sun10:547.911:416.74:550.45:49-0.67:094:39Waxing Gibbous20Sun
21Mon11:528.15:540.26:44-0.87:084:40Full Moon21Mon
22Tue12:366.912:468.26:500.07:36-0.97:084:42Full Moon22Tue
23Wed1:287.11:388.27:43-0.18:24-0.97:074:43Full Moon23Wed
24Thu2:167.22:268.08:33-0.29:09-0.87:064:44Waning Gibbous24Thu
25Fri3:017.23:137.79:21-0.19:52-0.57:054:46Waning Gibbous25Fri
26Sat3:457.23:597.310:080.110:34-0.17:044:47Waning Gibbous26Sat
27Sun4:287.04:466.910:570.311:170.37:034:48Waning Gibbous27Sun
28Mon5:136.95:366.411:470.57:034:49Third Quarter28Mon
29Tue5:596.76:296.012:020.712:390.87:024:51Third Quarter29Tue
30Wed6:486.57:255.712:491.01:341.07:014:52Third Quarter30Wed
31Thu7:416.48:265.51:401.42:341.17:004:53Third Quarter31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8422687)

Common Questions About Squamscott River, Great Bay, NH Tides

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What time does the tide turn (slack tide) in Squamscott River, Great Bay, NH today?

Slack tide in Squamscott River, Great Bay, NH is approximately 11:36 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Squamscott River, Great Bay, NH?

Squamscott River, Great Bay, NH is currently in a neap phase. Tonight's moon is 41% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly minimum.

What datum are Squamscott River, Great Bay, NH tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Squamscott River, Great Bay, NH?

Tide predictions for Squamscott River, Great Bay, NH come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Squamscott River, Great Bay, NH?

Tide data for Squamscott River, Great Bay, NH is sourced from NOAA Station #8422687. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8422687.

What is the moon phase in Squamscott River, Great Bay, NH tonight?

Tonight the moon over Squamscott River, Great Bay, NH is Third Quarter (41% illuminated). This places Squamscott River, Great Bay, NH in a neap tide cycle, so tidal ranges are near their weekly minimum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA